|
[Sponsors] |
October 20, 2005, 09:27 |
How to digitize a curve evenly.
|
#1 |
Guest
Posts: n/a
|
I used to digitize experimental curve with engauge. However, I don't know how to digitize a curve evenly using it? Could anyone has such kind of experience or using other software? Thanks advance.
|
|
October 21, 2005, 14:14 |
Re: How to digitize a curve evenly.
|
#2 |
Guest
Posts: n/a
|
What do you mean by "evenly"? Smoothly? Using engauge you have full control over the sampling locations. Choose them by hand instead of trying to digitize the curve automatically. Spending this effort will usually give much better results.
|
|
October 21, 2005, 14:36 |
Re: How to digitize a curve evenly.
|
#3 |
Guest
Posts: n/a
|
||
October 21, 2005, 18:21 |
Re: How to digitize a curve evenly.
|
#4 |
Guest
Posts: n/a
|
The 'evenly', I mean the independent variable is evenly. Like function F(x,y), the value of x is evenly, say 10, 20, 30...., then get the value of y from the curve.Can engauge do that. You know by hand you can't locate evenly the value of x.
|
|
October 23, 2005, 14:08 |
Re: How to digitize a curve evenly.
|
#5 |
Guest
Posts: n/a
|
No, I don't think engauge can do that. I also used Plot Digitizer (suggested by agg), but don't remember such option.
Well, what you can do is digitize the curve by choosing points by hand (this way getting a smooth result), and output the data points to a file. Then you use a second software (try xmgrace, which is a superb data plotting and analysis tool), to interpolate your curve on a specified abscissa (e.g. uniformly). If you don't have xmgrace, or any equivalent tool, you could also write your own little program to read the sampled data and interpolate it. That wouldn't be difficult to do. |
|
October 23, 2005, 15:01 |
Re: How to digitize a curve evenly.
|
#6 |
Guest
Posts: n/a
|
I see, Thanks a lot!
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[ICEM] Problems with coedge curves and surfaces | tommymoose | ANSYS Meshing & Geometry | 6 | December 1, 2020 11:12 |
[ICEM] Hexa mesh, curve mesh setup, bunching law | Anorky | ANSYS Meshing & Geometry | 4 | November 12, 2014 00:27 |
block-structured mesh for t-junction | Robert@cfd | ANSYS Meshing & Geometry | 20 | November 11, 2011 04:59 |
How to maintain spacing along a new curve? | KB | Main CFD Forum | 2 | June 5, 2007 16:45 |
CFX4.3 -build analysis form | Chie Min | CFX | 5 | July 12, 2001 23:19 |